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    <title>Document</title>
    <script>
        var odd = 0;
        var even = 0;
        for (var i = 1; i <= 100; i++) {
            // 奇数odd
            if (i % 2 != 0) {
                odd = odd + i;
            } else {
                even = even + i;
            }
        }
        console.log('奇数和为' + odd);
        console.log('偶数和为' + even);
    </script>
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</body>

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